At CrowdFound, users get to categorize article on the web into predefined categories and sub-categories. While the features have lot of similarity with the social bookmarking sites, the emphasis here is on letting content be the center of social networks rather than people.

CrowdFound claims that “this direct topic-based interfacing will allow users to rapidly identify other users’ interests in a particular topic and then communicate with each other in a topic-centric community.”

There are some nifty features to be found there that will appeal to all ( I bumped across a video of Guy Kawasaki’s presentation on entrepreneurial must-haves). The site is a good try.